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U e5d@sfdZddlZddlZddlZddlZddlZddlZddlZ ddl m Z dddddd d d d d ddddddddgZ dZ dZdZdZdZdZeejjddejjDZdZdZed jZed!jZed"Z ed#Z!d$d%d&hZ"dBd(d)Z#Gd*d+d+ej$j%Z&d,d-Z'e&fd.d/Z(Gd0ddej)Z*Gd1ddZ+z ddl,Z,Wne-k r`YnXGd2d3d3e+Z.e /d3Gd4dde0Z1Gd5dde1Z2Gd6d d e1Z3Gd7dde1Z4Gd8d d e1Z5Gd9d d e1Z6Gd:d d e1Z7Gd;d d e1Z8Gddde8Z;Gd?dde1Ze<Z?e1Z@dS)Ca HTTP/1.1 client library HTTPConnection goes through a number of "states", which define when a client may legally make another request or fetch the response for a particular request. This diagram details these state transitions: (null) | | HTTPConnection() v Idle | | putrequest() v Request-started | | ( putheader() )* endheaders() v Request-sent |\_____________________________ | | getresponse() raises | response = getresponse() | ConnectionError v v Unread-response Idle [Response-headers-read] |\____________________ | | | response.read() | putrequest() v v Idle Req-started-unread-response ______/| / | response.read() | | ( putheader() )* endheaders() v v Request-started Req-sent-unread-response | | response.read() v Request-sent This diagram presents the following rules: -- a second request may not be started until {response-headers-read} -- a response [object] cannot be retrieved until {request-sent} -- there is no differentiation between an unread response body and a partially read response body Note: this enforcement is applied by the HTTPConnection class. The HTTPResponse class does not enforce this state machine, which implies sophisticated clients may accelerate the request/response pipeline. Caution should be taken, though: accelerating the states beyond the above pattern may imply knowledge of the server's connection-close behavior for certain requests. For example, it is impossible to tell whether the server will close the connection UNTIL the response headers have been read; this means that further requests cannot be placed into the pipeline until it is known that the server will NOT be closing the connection. Logical State __state __response ------------- ------- ---------- Idle _CS_IDLE None Request-started _CS_REQ_STARTED None Request-sent _CS_REQ_SENT None Unread-response _CS_IDLE Req-started-unread-response _CS_REQ_STARTED Req-sent-unread-response _CS_REQ_SENT N)urlsplit HTTPResponseHTTPConnection HTTPException NotConnectedUnknownProtocolUnknownTransferEncodingUnimplementedFileModeIncompleteRead InvalidURLImproperConnectionStateCannotSendRequestCannotSendHeaderResponseNotReady BadStatusLine LineTooLongRemoteDisconnectederror responsesPiZUNKNOWNZIdlezRequest-startedz Request-sentcCsi|] }||jqS)phrase).0vrr#/usr/lib64/python3.8/http/client.py jsrids[^:\s][^:\r\n]*s\n(?![ \t])|\r(?![ \t\n])z[- ]z[-]ZPATCHZPOSTZPUTdatac Cshz |dWStk rb}z8t|j|j|j|jd|||j|j|fdW5d}~XYnXdS)zd?Z Z!S)FrrNcCsR|d|_||_||_d|_|_t|_t|_t|_ t|_ t|_ t|_ t|_ dS)Nrb)Zmakefiler@ debuglevel_methodrAmsg_UNKNOWNversionstatusreasonchunked chunk_leftlength will_close)r1sockrKmethodurlrrr__init__s  zHTTPResponse.__init__c Cst|jtdd}t|tkr*td|jdkrBtdt||sNt dz| dd\}}}WnFt k rz| dd\}}d}Wnt k rd}YnXYnX| d s| t|z$t|}|d ks|d krt|Wnt k rt|YnX|||fS) Nr+rCz status linerzreply:z-Remote end closed connection without responsezHTTP/ri)strr@r=r>r-rrKprintreprrsplit ValueError startswith _close_connrint)r1r3rOrPrQrrr _read_statuss2    zHTTPResponse._read_statusc Cs|jdk rdS|\}}}|tkr&qHt|j}|jdkrDtd|~q||_|_| |_ |dkrnd|_ n| drd|_ nt |t|j|_|_|jdkr|jD]\}}td|d|q|jd }|r|d krd |_d|_nd |_||_d|_|jd }|rb|jsbzt||_Wntk rLd|_YnX|jdkrhd|_nd|_|tks|tksd|krdksn|jdkrd|_|js|js|jdkrd |_dS)Nrzheaders:)zHTTP/1.0zHTTP/0.9 zHTTP/1. header:r*transfer-encodingrRTFcontent-lengthrHEAD)rArdZCONTINUErBr@rKr]coderPstriprQrOrarrIrMitemsgetr,rRrS _check_closerUrTrcr`Z NO_CONTENTZ NOT_MODIFIEDrL) r1rOrPrQZskipped_headershdrvalZtr_encrTrrrbegin5sf               zHTTPResponse.begincCsv|jd}|jdkr.|r*d|kr*dSdS|jdr>dS|rRd|krRdS|jd}|rrd|krrdSdS)NZ connectionrfcloseTFz keep-alivezproxy-connection)rArorOr,)r1ZconnZpconnrrrrp}s    zHTTPResponse._check_closecCs|j}d|_|dSN)r@rt)r1r@rrrrbszHTTPResponse._close_conncs$ztW5|jr|XdSru)r@rbsuperrtr1 __class__rrrtszHTTPResponse.closecst|jr|jdSru)rvflushr@rwrxrrrzs zHTTPResponse.flushcCsdS)zAlways returns TrueTrrwrrrreadableszHTTPResponse.readablecCs |jdkS)z!True if the connection is closed.N)r@rwrrrisclosedszHTTPResponse.isclosedcCs|jdkrdS|jdkr$|dS|dk rRt|}||}t|d|S|jr`|S|j dkrv|j }n6z| |j }Wnt k r|YnXd|_ ||SdS)Nr<rkr) r@rLrb bytearrayreadinto memoryviewtobytesrR_readall_chunkedrTread _safe_readr )r1amtbr2srrrrs*     zHTTPResponse.readcCs|jdkrdS|jdkr$|dS|jr4||S|jdk r^t||jkr^t|d|j}|j|}|s||r||n&|jdk r|j|8_|js||S)z^Read up to len(b) bytes into bytearray b and return the number of bytes read. Nrrk) r@rLrbrR_readinto_chunkedrTr-rr~)r1rr2rrrr~s$       zHTTPResponse.readintocCsr|jtd}t|tkr$td|d}|dkrB|d|}z t|dWStk rl|YnXdS)Nr+z chunk size;r) r@r=r>r-rfindrcr`rb)r1r3irrr_read_next_chunk_sizes    z"HTTPResponse._read_next_chunk_sizecCs:|jtd}t|tkr$td|s*q6|dkrq6qdS)Nr+z trailer liner9)r@r=r>r-rr1r3rrr_read_and_discard_trailers z&HTTPResponse._read_and_discard_trailercCsl|j}|sh|dk r|dz |}Wntk rDtdYnX|dkrb||d}||_|S)NrZr<r)rSrrr`r rrb)r1rSrrr_get_chunk_left s  zHTTPResponse._get_chunk_leftcCsbg}z6|}|dkrq0|||d|_qd|WStk r\td|YnXdSNrr<)rr0rrSrEr )r1valuerSrrrr8s zHTTPResponse._readall_chunkedcCsd}t|}zv|}|dkr$|WSt||krN||}|||_||WS|d|}||}||d}||7}d|_qWn(tk rtt|d|YnXdS)Nr)rrr-_safe_readintorSr bytes)r1rZ total_bytesZmvbrSr2Ztemp_mvbrrrrFs"        zHTTPResponse._readinto_chunkedcCs.|j|}t||kr*t||t||S)a Read the number of bytes requested. This function should be used when bytes "should" be present for reading. If the bytes are truly not available (due to EOF), then the IncompleteRead exception can be used to detect the problem. )r@rr-r )r1rrrrrr^s  zHTTPResponse._safe_readcCs:t|}|j|}||kr6tt|d||||S)z2Same as _safe_read, but for reading into a buffer.N)r-r@r~r r)r1rrr2rrrrjs  zHTTPResponse._safe_readintocCs|jdks|jdkrdS|jr(||S|jdk rJ|dksD||jkrJ|j}|j|}|sh|rh|n|jdk r|jt|8_|S)zvRead with at most one underlying system call. If at least one byte is buffered, return that instead. Nrkr<r)r@rLrR_read1_chunkedrTread1rbr-)r1r2resultrrrrrs    zHTTPResponse.read1cCs4|jdks|jdkrdS|jr(||S|j|S)Nrkr<)r@rLrR _peek_chunkedpeek)r1r2rrrrs  zHTTPResponse.peekcs|jdks|jdkrdS|jr*t|S|jdk rL|dksF||jkrL|j}|j|}|sj|rj|n|jdk r|jt|8_|S)Nrkr<r)r@rLrRrvr=rTrbr-)r1limitrrxrrr=s    zHTTPResponse.readlinecCsd|}|dks|dkrdSd|kr0|ks6n|}|j|}|jt|8_|s`td|Sr)rr@rrSr-r )r1r2rSrrrrrs zHTTPResponse._read1_chunkedcCsDz |}Wntk r"YdSX|dkr0dS|j|d|S)Nr<)rr r@r)r1r2rSrrrrs zHTTPResponse._peek_chunkedcCs |jSru)r@filenorwrrrrszHTTPResponse.filenocCsF|jdkrt|j|p|}t|ts4t|ds8|Sd|SdS)axReturns the value of the header matching *name*. If there are multiple matching headers, the values are combined into a single string separated by commas and spaces. If no matching header is found, returns *default* or None if the *default* is not specified. If the headers are unknown, raises http.client.ResponseNotReady. N__iter__z, )rArZget_all isinstancer\hasattrrE)r1r&defaultrArrr getheaders zHTTPResponse.getheadercCs|jdkrtt|jS)z&Return list of (header, value) tuples.N)rArlistrnrwrrr getheaderss zHTTPResponse.getheaderscCs|SrurrwrrrrszHTTPResponse.__iter__cCs|jS)ajReturns an instance of the class mimetools.Message containing meta-information associated with the URL. When the method is HTTP, these headers are those returned by the server at the head of the retrieved HTML page (including Content-Length and Content-Type). When the method is FTP, a Content-Length header will be present if (as is now usual) the server passed back a file length in response to the FTP retrieval request. A Content-Type header will be present if the MIME type can be guessed. When the method is local-file, returned headers will include a Date representing the file's last-modified time, a Content-Length giving file size, and a Content-Type containing a guess at the file's type. 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